Mitsubishi Electric 800 Series Instruction Manual page 83

NOTE
• A brake resistor cannot be used with options such as brake units, high power factor converters, and multifunction regeneration
converters.
 Connecting the MRS or MYS brake resistor or the FR-ABR high-duty
brake resistor
It is recommended to configure a sequence, which shuts off power on the input side of the inverter by the external thermal relay
as follows, to prevent overheat and burnout of the brake resistor (MRS, MYS) or the high duty brake resistor (FR-ABR) in case
the regenerative brake transistor is damaged. (Not available for FR-E820(S)-0008(0.1K) and FR-E820(S)-0015(0.2K).)
<Example 1>
MC
Power
Supply
T
F
MC
ON OFF
OCR
Contact
MC
*1 Refer to the following table for the thermal relay models for each capacity. Refer to the following diagram for the connection.
Power
supply Brake resistor
voltage
MRS120W200
MRS120W100
MRS120W60
200 V
MRS120W40
MYS220W50
(two in parallel)
Power
High-duty brake
supply
resistor
voltage
FR-ABR-0.4K
FR-ABR-0.75K
FR-ABR-2.2K
200 V
FR-ABR-3.7K
FR-ABR-5.5K
FR-ABR-7.5K
FR-ABR-H0.4K
FR-ABR-H0.75K
FR-ABR-H1.5K
400 V FR-ABR-H2.2K
FR-ABR-H3.7K
FR-ABR-H5.5K
FR-ABR-H7.5K
82
2. Installation and Wiring
2.9 Connection of stand-alone option units
Thermal relay
(OCR)(∗1)
Inverter
FR-ABR
R/L1 P/+
R
S/L2
T/L3
PR
Thermal relay
model (Mitsubishi
Electric product)
TH-T25-0.7A
TH-T25-1.3A
TH-T25-2.1A
TH-T25-3.6A
TH-T25-5A
Thermal relay
model
(Mitsubishi electric
product)
TH-T25-0.7A
TH-T25-1.3A
TH-T25-2.1A
TH-T25-3.6A
TH-T25-5A
TH-T25-6.6A
TH-T25-0.24A
TH-T25-0.35A
TH-T25-0.9A
TH-T25-1.3A
TH-T25-2.1A
TH-T25-2.5A
TH-T25-3.6A
<Example 2>
Power
Supply
T
F
MC
ON OFF
MC
Rated operating current
120 VAC: 2 A (NO contact) / 3 A (NC
contact),
240 VAC: 1 A (NO contact) / 2 A (NC
contact) (AC15 class)
110 VDC: 0.2 A, 220 VDC: 0.1 A (DC13
class)
Rated operating current
120 VAC: 2 A (NO contact) / 3 A (NC
contact),
240 VAC: 1 A (NO contact) / 2 A (NC
contact) (AC15 class)
110 VDC: 0.2 A, 220 VDC: 0.1 A (DC13
class)
Thermal relay
(OCR)(∗1)
MC Inverter
R/L1 P/+
S/L2
T/L3
PR
B
C
OCR
Contact
1/L
1
2/T
1
To the inverter
P/+ terminal
FR-ABR
R
5/L
3
6/T
3
To the ABR